What should I do if I have both an ITIN and an SSN?
If you previously had an ITIN and later became eligible for and received an SSN, you should:
- Stop Using the ITIN: Use the SSN for all future tax filings and financial activities.
- Notify the IRS: Write a letter to the IRS requesting that they merge your tax records under your SSN. Include:
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- Your ITIN number.
- Your SSN.
- Your full name.
- A copy of your SSN card.
- Any prior tax returns filed using the ITIN.
This step ensures that your tax history is consolidated under the SSN and prevents any confusion or duplication in the IRS’s records.